feat(archive): introduce ts_shared browser-compatible layer, refactor Node-specific tools to wrap/shared implementations, and modernize archive handling

ts_shared/index.ts

@@ -0,0 +1,17 @@
+// ts_shared - Browser-compatible shared code
+
+// Interfaces and types
+export * from './interfaces.js';
+
+// Error classes
+export * from './errors.js';
+
+// Tool classes
+export { ZipTools, ZipDecompressionTransform } from './classes.ziptools.js';
+export { GzipTools } from './classes.gziptools.js';
+export { TarTools } from './classes.tartools.js';
+export { Bzip2Tools } from './classes.bzip2tools.js';
+
+// BZIP2 internals (for advanced usage)
+export { unbzip2Stream } from './bzip2/index.js';
+export { Bzip2 } from './bzip2/bzip2.js';